(FACT-2817) Add acceptance test for session cache.

acceptance/tests/session_cached_is_not_refershed_in_session.rb

@@ -0,0 +1,27 @@
+test_name 'facter should not update it`s session cache in same session' do
+  tag 'risk:high'
+
+  fact_content = <<-EOM
+    require 'facter'
+    
+    seconds_before = Facter.value('system_uptime.seconds')
+    sleep(3)
+    seconds_after = Facter.value('system_uptime.seconds')
+    
+    puts seconds_before == seconds_after
+  EOM
+
+  agents.each do |agent|
+    fact_dir = agent.tmpdir('test_scripts')
+    script_path = File.join(fact_dir, 'session_test.rb')
+    create_remote_file(agent, script_path, fact_content)
+
+    teardown do
+      agent.rm_rf(script_path)
+    end
+
+    on(agent, "#{ruby_command(agent)} #{script_path}") do |ruby_result|
+      assert_equal('true', ruby_result.stdout.chomp, 'Expect the session cache is not reset in same session')
+    end
+  end
+end

custom_facts/my_custom_fact.rb

@@ -3,7 +3,6 @@
 Facter.add(:my_custom_fact) do
   has_weight(10_000)
   setcode do
-    # 'my_custom_fact'
     Facter.value('os')
   end
 end